Launch code FIRST15 for 15% off
Sleep Through · for adults 45+

Had enough of waking at 3am every night?

Sleep Through is a magnesium and electrolyte drink you take an hour before bed, to support deeper, less interrupted sleep. No melatonin, nothing to sleep off.

Shop Sleep Through From $40.00 · 30 nights
  • No melatonin
  • 222mg magnesium per stick
  • Dispatched in 1 working day
Sleep Through pouch and sticks on a bedside table, from a dark evening on the left to sunrise on the right, with a stick being poured into a glass of water
How it works

One stick. Three parts of the night.

Most sleep products are built for the first twenty minutes. Sleep Through is built for the hours after you fall asleep.

  1. 21:00

    Wind down

    Stir one stick into 100ml of water an hour before bed. A small ritual that closes the day.

  2. 03:00

    Sleep through

    Formulated for the second half of the night, to support deeper, less interrupted sleep through the hours when the 3am wake-up tends to happen.

  3. 07:00

    Wake restored

    No melatonin and no sedatives, so there’s nothing to sleep off. Magnesium helps reduce tiredness and fatigue.

In every stick

What Sleep Through supports

Supports normal muscle function

For muscles at the end of a long, active day.

Magnesium · Potassium

Helps reduce tiredness and fatigue

For the mornings after a broken night.

Magnesium

Supports fluid balance

Day-to-day fluid loss draws down sodium too, so it’s in the formula.

Sodium

Supports normal function of the nervous system

Electrolytes your nervous system relies on, every night.

Sodium · Potassium
Dual-form magnesium

Two forms of magnesium in every stick. Magnesium bisglycinate (magnesium bound to the amino acid glycine) with magnesium citrate, for 222mg of magnesium per serving.

Why this formula

222mg

magnesium in every stick, as bisglycinate + citrate

Magnesium on its own is the usual approach. We built Sleep Through as a set: magnesium, two amino acids and the electrolytes that normal day-to-day fluid loss draws down.

Five actives, every dose printed on the pack. No proprietary blends and no melatonin.

Per 8g stickAmount
Magnesiumbisglycinate + citrate
222mg
Glycinean amino acid
1,500mg
L-Theaninean amino acid found in tea leaves
150mg
Sodium
130mg
Potassium
90mg

No melatonin · no caffeine · Full label

Sleep Through pouch with a glass of water and a stick
Sleep Through

Build your order

One mixed pouch: 30 × 8g sticks, 10 each of Lemon & Lime, Mixed Berries and Watermelon.

FIRST15 takes 15% off the one-month pouch: $34.00
1Choose your supply
2Choose how often

FIRST15 applied at checkout: $34.00

Dispatched within 1 working day · US delivery $7.99

  • Secure Shopify checkout
  • Dispatched in 1 working day
  • No melatonin
What’s in each stick

222mg magnesium (bisglycinate + citrate), 1,500mg glycine, 150mg L-theanine, 130mg sodium and 90mg potassium. See the full label.

How to take it

Stir one stick into 100ml of water and drink it about an hour before bed. One stick a day.

Delivery

Orders are dispatched within 1 working day. Delivery is a flat fee: £3.99 in the UK (free over £70), $7.99 in the US (free over $90, 6 to 8 days) and €6 in the EU (free over €80). 3-month orders ship free.

Tastes like

Three flavours, all light

Mixed into a small glass of water, so it drinks in a few sips.

Lemon & Lime

Bright and sharp, with a clean citrus finish.

Mixed Berries

Soft and fruity, the gentlest of the three.

Watermelon

Fresh and lightly sweet, like a summer evening.

Every pouch is mixed: 10 sticks of each flavour.

Compare

Sleep Through vs the usual options

FeatureSleep ThroughMelatonin
Built for Deeper, less interrupted sleep in the second half of the night Falling asleep faster
MelatoninNoneThe main active ingredient
What’s in itMagnesium, glycine, L-theanine, sodium, potassiumA hormone
Habit-formingNoCheck with your pharmacist
FormatA drink you stir into waterUsually a tablet or gummy

General comparison by product type. Individual products vary, so check the label.

How to use

Ten seconds at the end of the day

  1. 1

    One stick

    Tear open one 8g stick.

  2. 100ml

    Into water

    Stir into 100ml of cool or room-temperature water.

  3. 1hr

    Before bed

    Drink it about an hour before you go to sleep.

Jon and Clare Bairam, co-founders of Circadian Signal
Jon & Clare Bairam, co-founders
Meet the founders

Two people, one bed, both awake at 2am.

We turned 45 and our sleep started to break up, so we built the thing we couldn’t find.

Somewhere around 45, Clare and I started waking at the same hour. Falling asleep was never the issue. It was 2 or 3am, wide awake, a mind that wouldn’t switch off, then a long wait to drift back.

When we looked at what was on the shelf, almost everything was built around sedation and falling asleep fast. Falling asleep wasn’t our problem, so none of it fitted. Hardly anything was made for the second half of the night.

So we made our own: an 8g stick with 222mg magnesium (as bisglycinate and citrate), 150mg L-theanine and 1,500mg glycine, plus sodium and potassium, stirred into water before bed. Every dose is printed on the pack, so you can see exactly what you’re taking.

Jon & Clare

FAQ

Questions, answered

Anything else? Get in touch and a founder will reply.

How does Sleep Through work?

It’s a nightly drink built for the second half of the night rather than for falling asleep. Each stick combines magnesium, which supports normal muscle function and helps reduce tiredness and fatigue, with glycine, L-theanine, and sodium and potassium, which support normal function of the nervous system. There’s no melatonin and no sedative.

What does it taste like?

Light and fruity. Every pouch is mixed: ten sticks each of Lemon & Lime, Mixed Berries and Watermelon.

When should I take it?

Stir one stick into 100ml of water and drink it about an hour before bed. One stick a day. It works best as part of a regular evening routine.

What’s in it?

Each 8g stick has 222mg magnesium (as magnesium bisglycinate and magnesium citrate), 1,500mg glycine, 150mg L-theanine, 130mg sodium and 90mg potassium. No melatonin, no caffeine and no proprietary blends. The full label is on the product page.

How fast is delivery?

Orders are dispatched within 1 working day. Delivery is a flat fee: £3.99 in the UK (free over £70), $7.99 in the US (free over $90, usually 6 to 8 days) and €6 in the EU (free over €80). 3-month orders and subscriptions ship free.

Do you ship to the US, UK and EU?

Yes. Prices show in your local currency, and you can switch currency at the top of the page. Checkout is handled securely by Shopify.

Will it upset my stomach?

Most people have no trouble. Magnesium can loosen stools in some people, especially at first. If that happens, try half a stick for the first week. If you have a digestive condition, check with your doctor before you start.

Is there a subscription?

Yes, if you want one. The 3-month subscription sends three pouches every 3 months for 18% less than buying three one-month pouches, with free delivery, and you can cancel anytime before your next shipment. You confirm it on our Shopify store. One-time orders never renew.

Is it habit-forming?

No. There’s no melatonin or sedative in it, and you can stop whenever you like.

I take medication. Can I take it?

We can’t give personal medical advice. If you take regular medication, or you’re pregnant or breastfeeding, check with your doctor or pharmacist before starting any new supplement.

Start with one month.

30 sticks for $40.00, or $34.00 with code FIRST15.

Shop Sleep Through